Work presenting device



Jan. l0, 1928. 1,655,427

1'. LUND WORK PRESENTING DEVI CE Filed Nov. 19, 1,923

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Patented Jan. l, 1928.

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Tioivrie Lennon BEVERLY, MASSACHUSETTS, ASSTGNOR To UNITED siren MACHIN- nRYlooRPoRATroN, or. ReTnReoN, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

WORK-PRESENTING DEVICE.

Y Appiieauon ined November 19, 1923. semaine. 675,606.

This invention relates to a Work-presenting' device and,more.particularly to a' device :whereby small pieces of Work may conveniently be presented to the operating tool f of a machine and accuratelv positioned with respect Vto said toolr Without danger tothe operator. 4 y i ln the presentation of Small flexible shoe parts such as vheel pads, ankle protecting' l pieces and the liketo machine such as an embossing machine which employs a recipn yrocatinggv heatedfdieg it has been ounddiiiicult accurately to present the vork piecee` to the die'ivithout danger to the operator l-r either from .crushingl thel lingers or from burns by contact with the heated die. Largely for these reasons ythe production of euch a Lmachine is verv considerably de- 'creaeed when it is applied to the marking' ot' small pieces of ivorlr.

An object of the presen provide' an improved tvorlepresentinggv device cagable ofhandline` small flexiblepieces of work bynieans of Which t-lie ivork ivill be accurately presented tothe operating' tool of such a" machine and the operatorsafeguarded, thereby increasing' the production Aof ther machine.

E; feature of the invention resides in a inf.;` a men'iber rota-table about an axis at the front ofthe machine between the Work cable of Jthe machine and the operatorv and com-k biiied with a subetantiallv annular supporting member extending` between the operator and kthe Work table of the :machine `and in -tlic plane thereof Sothat the rotatable member mayY carry pieces of fivorl; presented. to it along .Caid member on to the Work table of the machine rapidlv and accurately. 1' Preferably, the' annular `member lis interrupted and the rotatable member is arranged to carry the pieces" of Vivorli away from Vthe Yoperating tool over the interrupted portion of said vmember ivhere `thev are delivered from. the machine. n f

Still another feature of theinvention consists in an improved constructiony and Larrangement, for driving and releasing' the transferring' member' of a .Work-Presenting;

t invention is toA ar device ofthe type referred to.` Inthe par ticular embodiment shoivn and illustrated herein the device is fi'ict-ionallv connected to a rotating` shaft and is released for turning moif'enient by a latch` operated bythe reciprocationxof the tool of the machine. Pref erabl",7 thev transferring' member is held temporarily vby the tool itself as the operation is performed upon the work and the return movement of kthe latch is delayed as the tool is Withdrawn. Thus perfect correlation of the movements of the transferring' member and the tool is effected and a simple construction is provided which may be operated speedily and safely.' l

Other features of therinvention relate to improved,Work-holding; mechanism provided with novel gages ensuring` the accurate entation of the Work to the tool.

It ivillbe obvious to those Skilled in the t that the device shown herein and claimed is not limited in itsapplication to the particular machine in connection with which the' problemarose. `l" or purposes of illustration, however, the device is herein shown presas mounted upon and used in connection with an embossing machine.

n the accompanying draivings:-

` Fig. `l is a perspective vieiv of the Workfecdingdevice and the associated parts of an embossing machine; y f 'Fig'. 2 is a plan View; i

ltigis a side elevation;`

Fig. l is a perspective vieiv of the ivorlc Supporting' table; Y

Fig'. 5 is a. detail vieiv showing the releasing' latch;

' F 6 .ia a detail of the connection betiveen theiparts of the work-holding device; and jy Fig'. 7. is a vienT partly .inv section of the friction drive for the rotating` turret.

`rlhe machine in which the `ivorlrpresenting' device of the invention is illustrated as incorporated comprises a` frame l0 and a work-supporting anvil 127 which vco-operates with a heated die 14.-v carried bv a reciprocating plunger 16. Thisr plunger is driven by power received from adriving' pulley 18.

The moving parte of the device'are preferably mounted on a Lil-shaped bracket 20 (Fig. 2) mounted on a transverse pin 2l and lim bolted to the frame of the machine. The bracket 20 is provided at its outer end with bearings for a transverse shaft 22, which is arranged to be driven from the driving pulley of the machine by means of avbelt 24. Bearings are also provided in the bracket for a vertical turret-carrying shaft 26, which is arranged to be driven continuously from the shaft "22 by a worm 28 and a gear 30. From an inspection of Fig. 4, it will be seen that a supporting table 32, forinedas a segment of an annulus, is rigidly attached to the anvil 12 and has its yupper surface -in Ythe plane of the upper surface of said anvil.

r Superposed on thisvtable 32 and frictionally driven `frointhe vertical shaft 26 is a workpresenting device in the forni of a turret 40, which is provided with two similar arms 42 and 44. Each of these arms has an opening 46 (see Fig. 5) which is practically sur- 'rounded by work gages These workgages comprise end members 50 held inposition by ret. Voblique slots, which co-operate with headed Iscrews 52 and pins 54 passing through slots in the gages and secured to the arms of the tur- The side Vgages 56 are provided with pins 58` upon the end gages. inward movemeiit'of the end gages will therefore cause a corresponding and predetermined inward -moveinentv of the side gages,the design of the arrangement being such as te adapt it for the particular class of work for which the device is being built. Because of the adjustments provided, `the Vparticular design is adapted ifor the various sizes of work which will be encountered in practice` 'It will be seen from Fig' that each of the gage pieces is provided 'with an `overhanging lip which enters one of the openings 46 of the turret arms andbrings the effective parts of the gages into position for engagement with thcV edges ofthe 'piece of work. The ends of tlu` side-"and end gages are halved,V as shown in Fig. 6, so thatthey are located substantially .interposed between said disk and the nuts 68 on the end of the shaft 26.

The `continuous rotation of the vertical shaft 26 tends therefore to cause continuous rotation of the turret v40. This is prevented, however, by an overthrow-preventing latch 70 (Fi'gf), which is mounted 'on a plunger V72slidable vertically'in a bearin'g7 4 formed in thefbracket'QO. lThe latch 70 is shaped forpositive engagement with lugs 76; one

of which is formed on the outer end of each of the arms 42 and 44. The plunger 7 .2 is urged upwardly by a spring 7 8 and is held against rotation by a pin SO passing through the bearing74 and entering an elongated slot in the plunger. A friction brake S2 -held in contact with the side of the plunger lby a spring 84 serves to retard the upward cennectionwith the upper end of the plunger 72 and clepresses the plunger sufiiciently to remove the latch from Contact with one of the lugs 76 just as the die enters the recess in the turret and comes in contact with the work. This position of the die prevents the rotation of the turret until the die has receded. The turret is then free to rotate owing to the fact that the friction device 82 retards the upwardmovement of the plunger carrying the latch 70 until after the turret has carried the lug 76 out of alinement with said latch. The retardation of the latch is, hewever, not sufficient to allow more than a l alf rotation of the turret.

1n the operation of the device, the oper'- ator `will place a piece of work within the opening 46 in the arm of the turret which is at the frontof the machine, having previously adjusted the side` and end gages to correspond with thesize of the work which is being presented. It will be seen that the piece of work rests on the upper surface of the annular table 32 and that when the tur- Vot the machine (not shown) to cause a reciprocation of the plunger 16 and the emboss ing of the particular piece of work, which was first presented. fis this series of operations is continued, the piece of work which 'was embossed is slipped oil' the surface of the anvil and allowedto fall out of the tui'- ret into a suitable receptacle placed at the side of the machine. By reason of the fact Vthat werk'is always placed in the arm of the turret which is removed from the reciprocating plunger carrying the heated die, all danger of injury to the operator is avoided,

Yand she is enabled greatly to increase the speed of operation of the machine both for the reason that no care need be taken to prevent injury and for the reason that the work lill] is bound to be'accurately presented to the embossing die Without need orliolding the Work manually in positionfon tlie anvil., AHaving described the invention, vvliat I claim as new and desire to secure by Letters Patent of tlie United States is:

1.v A work-presenting devicel comprising i a ysupporting'table"extending from a remote point toapoint beneatli an operating tool, al

transferring member provided vvitli Worle 'holding means superposed oiisaid table, .means for moving the transferring member to bring tlie Work-holding means into and out of position adjacent to any operating tool,y y and overthrow-preventing retaining means adapted to be released by movement of said tool iiomallv urOed to a osition to sto) u b positively tlie transferring member in posi` tion to receive tlie Work.

i 2. A Worlepresentingf device comprising a supporting table vextending from a'freniote point'to a point adjacent to an operating tool, a transferring `member provided with a worleliolding recess superposed on said o. A Work-presentingdevice comprising a V*supporting table extending 'from a remote' point to a point beneath anoperating tool, a transferring member provided with a Workliolding recess superposed on said table, constantly operating means for moving the transferringmember to bring the'Work-holding recess int-o and Aout-ot alinem'ent Witliaii" operating. tool, and yretaining means for stopping positively tlie transferring mem-j bei: when it is in a position-'to receivetlie work and 'when tbe worlcis in alineinent Witli tbe operating tool.

et. .A woi'lr]ii'eseiitiiig device comprisingj means bavinga Work supporting surfaceeie tending :from a remote point to an operating point, a rotatable transferring member pro--V` vided with a Worloholding recess superposed on sa-id surface, continually operating :friction drivingv means for rotating the? transferring member to bring` tlie Work-holding recess into and out o't` alinemeiit With-an operating tool, and retaining kmeans for' stopping tlie transferring member when tlie Work is iii alinemeiit Witlitlieoperating tool.

.fi-[ii Work-presenting device comprising K means having a Work supporting surfacey extending from a rei/note point tofan opervating point to support the Work at said-i point.y 'a rotatable member provided .with a Work-holding yrecess superp'o'sed' on said siirface, continually operating friction driving means for rotating the rotatable` membertoy bring the Work-holding recess into alinenient Wit-li an operating tool, and retaining means for stopping the rotatable device vrWlien 'it is at a remote point and When the work is vin alinement Witli the tool. p

Y y6. A Work-presenting device comprising meanshaving a Work supportingsurface eX- f tending from a remote pointto an operating point, a rotatable member provided Witli a Work-holding recess superposed on said sui tace, means for rotating the rotatable membei' to bring the Work-holding recess into aliiiement ivitli an operating tool, retaining means for stopping the rotatabledevice in position to receive the Work urged into retaining position, and means to retard tlie movement of said retaining ineansinto retaining position.` Y

7. A,-ivorlr-presenting` device vfor a nia- 'cliine embodying a work support and an opcratingtool, said device comprising; a rotatable member, a plurality 'of Work-retaining devices on said member, meansfor rotating 'fil au Y

said member, androtatioirpreventing means constructed and arranged to be pushedaside during' tbetorward movement of tli'e tool to alioivvtlie rotation of said rotatablemember p fto bring said Work-retaining devices successively into alinement with said tool. 8. A work-presenting device for a inacliiiie embodying a Work Support and an op @rating tool, said device comprising a r0tatable member having a \voi'kretaining device, means for V rotating said member,retainiiig means for controlling tlie rotation of said rotatable member constructed and arranged Y vformovementinto and out orl engagement with ysaid rotatable member, and means for 're'art ino` ie movemeii Vosai re'aininv t l g tl t i d t g device in one direction.

A- Work-presentingdevice adapted for luse Witli a machine 'embodying a Worlrsupport and anoperatingtool, said device com` prisiiig a. suppoij't-ingtable arranged substanL tially iii the plane ot tbe upper sui'iace of said work support, a rotatable member provided withv a. w'orlrliolding opening superiosed on said table during a fractional part ot itsk rotation, means urging said rotatable 'member iii a rdirection tobriiig` the Work first into line Witli tlie tool of the machine and "tlien awayfrom the table to allow tbe Work btol drop out, and'means adapted to be operated byl movement ot said tool for control-y ling the rotation of said member.

i 10. A Work-presenting device for a inacliiiieembodying a Work support and an opz eratin'g tool, said device comprisingy a rotary WOrlr-Carrying turret, rotating means frictionally engaging said turret and urging tlie. rotation of tlie saine to bring a piece of Work into and out of aliiiement ivitli tlie tool of tlie machine, and a latcli arranged 'for engagement yvvitli tlic turret to stop its rotation when a piece of Work comes into alinenient @with the4 tool, said latclibeing constructed hold the turret in position wvithione of its andarranged lto be moved out of `engagement with the turretby the tool as it ap-A proaches the Work, the rotation of the turret being prevented bythe engagement of the Y,

Work by the tool. n

l1. A Work-presentingtool torial machine embodying a ivorlr support and an operative tool, said ldevice comprising a Work-supporting plate disposed substantially in the plane ot' the surface ot the Work support, a rotatable turret superposed on said plate and .provided with Work gaging devices symmetricallydisposedn'ith respect to the aXis of rotation oi the turret,fsaid turret being so disposed with respect to the Work support that it ivillcarry a piece ot rivorlr from a position removed from the Work support into alinement ivith the work support, means continuall)7 eii'ective tor urging the rotation of z, ,the turret in oiiedirection, retaining means arranged for engagement .With said turret to work-engaging devices in alineinent with the rtool, and means i'ior retardiiig movement of said retaining means in one. direction.

12. Inra Work-,presenting device, a rotatabletiirret provided with a Work-receiving recess, ivorlegaging members adjustably mounted on all sides of the recess-in said'turret to surround said recess, and means for .retaining said .Work-gaging members in adjusted position.

i3. in a ivork-pi'esentin );device7 gage members for detern'iimngthe ipositionof a `piece `of `Work ivith respect .to said device,

comprising end membersguided for reciprocation toward and away 'rom'one another, ymeans tor retaining said end members in adjusted position, andside members con` structed and arranged for symmetrical move ,meutltoward aiidyawayffromone another by reason ottheadjusting movement ot theend .1i-ages. i

ifi. in an work-presenting- ,devicc, f gage members con'iprising end pieces adpistably mounted on the device and 1provided Wit-li pins, side members having oblique slots adaptethto lbesuperposed,onthe pins of the end members, and ymeans `for retaining the end members in'adiusted position.

In a Work-presenting device, a'rotatn kable membem a retaininglatch for `controlling. the rotation of-saidmember constructedL and arranged v'to move into and out of engagement therewith, means controlled by an operating part of the machine to ywhich the device is att-ached for moving said retaining latch out ot engagement with the rotatable member, and means i'or-.retarding-the return ot the latch into position -for engagement with the rotatable member.

16. A `Work-presenting device Vftor -a Vmachine embodying a Work support andan operating tool, said device comprising a rotatable lmember .having Work-retaining .meut with kth tool,

.-iiieans, lmeans 'lirictionally ;ii'ie ans,.means ifor rotatingsaid member, and retaining ln'ieans for controlling the rotation of said rotatablemember Vconstructed and arrangedgor ii'iovement into and out of engagement ivith said rotatable inember, said operating tool-and said retaining means be-V ing constructed and arranged so that movement et tlienoperating retaining means.

1T. A ,Work-present."iig device for a machine eiiibodyinga Work support and an op-V cratiiig-t-ooh-said device comprising a rotary u'orlr-traiisterring turret provided with a iroi'lei'eceiviiig opening `means for rotating said turretto bring the opening into alineand a latch arranged for engagement -ivith the turret to stop its tool will operate the yrotation when the work-receiving opening vgtiveiy rotation oi the-rotatable member, and

means movable ywith safdttoolto push aside .thelatch as theitool is operated.

19. fi Work-presenting device :tor a inacliine; embodying a work-supporting table .and an i operating tool :adapted for Ai'elat-i ve movement to` cause the tool to engage a piece --o'lh Worli supportedioiisaid table, said Workp-resentng device comprising a Lturret rotatable-aboutnnfaxi's in trontot said table so that it will occupy a position between the machine and the operator, a `substaiitially annular work-supporting member around said turret .u'ftli an upper tace inthe `plane o't' the work table and extending theretroiii -to afposition iii V'frento'lthe tool aiidadjafceiittovtheoperator, and a ilurality ot ivoiliretaining means-upon said turret constructed and arranged to move a series of iiexible `peces otleather such as slice parts along the annularmember from a receiving position at the .iront Where they are delivered to the turretby- `the operator to a predetermined operating'positionover-the work table, Where- .bythepiecesoit Work may be accurately and rapidly positioned beneath the operating tool Without danger ot injury to the opera# f tor.

20. A" Work-presenting.device for attachmeut to the vfront of Ya .machineembodyinga {iat-surfaced Werkt-able andan operating vtool adaptedtobe broiiglitinto engagement with Work .supported on said-table, saidide- Sii 3 i iii CII n'itliin said interrupted*annular supporting member constructed and arranged to move a plurality of small flexible leather shoe parts along the annular member from said recev ing position to a position beneath the operating tool and tlience vto a delivery position Wlieretliey are not supported by the annular member.

i i 21. A Work-presenting device 'for an embossing machine which comprises a flat Work table and a reciprocating die above said table, said device including a curved smootlisurfaced table in the plane of the work table of the machine and yextendingtherefrom to a position in front of and remote from the yreciprocating die, a turret rotatable Wit-hin said curved table and arranged to carry smaillexible pieces such as siioe parts along,` tbev curved table from a forward receiving positionk to an operating position beneatli the die including a plurality o1E Work-engaging devices, and means for intermittently rotating said turret to carry the pieces of Work vfrom the receiving position to the operating position, said rotating means'being timed relatively to tlie means for reciprocating the die to ensure the positioning oa piece of Work` upon the Work table prior to the descent of the die. I Y

In testimony whereof I have signed my name to this specieation.

i THOMAS LUND. 

